Comparison of KFA2 GeForce RTX 4090 ST (1-Click OC) video card vs ZOTAC GAMING GeForce RTX 3090 Ti AMP Extreme Holo video card by specs and benchmarks. KFA2 GeForce RTX 4090 ST (1-Click OC) runs at 2.235 GHz base clock speed and has 24 GB of GDDR6X memory, while video card ZOTAC GAMING GeForce RTX 3090 Ti AMP Extreme Holo runs at 2.235 GHz base clock speed and has 24 GB of GDDR6X memory. The weight is different, -- vs --. The TDP of the first video card is 450 W, and the second is 450 W . Compare the benchmark results to find out which video card is better.